#include <iostream>
#include <cstdio>

using namespace std;

namespace myspace {
    int num;
}

int main(void)
{
    int n;

    cin >> n;
    cout << "n = " << n << endl;

    myspace::num = 100;
    cout << "num = " << myspace::num << endl;

    std::cout << "Hello,World" << std::endl;
    std::printf("Hello\n");

    return 0;
}
